通过短期俯卧床休息来调节前庭输入,影响体感知觉:对太空任务的含义
Roberto Gammeri1, Adriana Salatino1, Maria Pyasik2
1Space, Attention and Action (SAN) Lab, Department of Psychology, University of Turin, Turin, Italy.
Frontiers in neural circuits
|August 2, 2023
概括
头向下倾斜的床上休息减少了自我和外部产生的刺激的感知强度. 这种引力调制消除了一些参与者的体感衰减 (SA),突出了重力在区分自我和其他产生的感觉中的作用.
科学领域:
- 神经科学是一个神经科学.
- 人体生理学 人体生理学
- 感官感知是一种感官感知.
背景情况:
- 身体感官衰减 (SA) 描述了与外部刺激相比,自我产生的刺激的感知减少.
- 在SA中,前庭输入和重力的作用尚不清楚.
- 头向下倾斜床支 (HDBR) 模拟了地球上的微重力效应.
研究的目的:
- 为了研究HDBR诱导的重力调制对体感觉感知的影响.
- 为了确定前庭输入是否影响自我和外部产生的刺激之间的区别.
- 探索模拟微重力对体感衰减 (SA) 的影响.
主要方法:
- 40名健康参与者接受了短期的头向下倾斜床休息 (HDBR).
- 参与者被蒙上眼睛,在直立和HDBR位置接受非疼痛的电刺激 (自我和其他产生的).
- 感知到的刺激强度是使用利克尔特等级来评价的.
主要成果:
- 与直立姿势相比,在HDBR期间,体感刺激被认为不那么强烈.
- 在展示SA的参与者中,HDBR降低了外部产生的刺激的强度,消除了SA.
- 在直立的位置上,SA的大小与体感值负相关.
结论:
- 通过HDBR引力调制导致对体感刺激的低估.
- 在HDBR期间减少前庭输入可以消除体感衰减 (SA) 现象.
- 这些发现提供了关于重力在感官感知中的作用的见解,并对太空旅行产生了影响.
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